MSI 848P Neo-V Series User Manual page 58

Performance Mode
This item allows you to control the MAT (memory acceleration technology) function of
TM
CPU. MAT is MSI 's exclusive technology, specializing in optimizing the data transfer
rate among CPU, north bridge chip and memory, and also in procuring better memory
performance and bandwidth up to 10%. Selecting [Fast] will enable MAT. Please be
noted that not every memory is compatible with MAT. If the system fail to reboot for
four times, the BIOS will be restored to the Default value ([Normal]). Setting options:
[Normal], [Fast].
MSI Reminds You...
1. Even though MAT is easy to use, it doesn't mean there's no risk at
all. We recommend you to check if your memory is able to bear
MAT setting or not before deciding to always use it. If your system
will be unstable or reboot incidentally after switching to [Fast],
please switch back to [Normal]. Moreover, if you want to conduct
FSB overclocking, you should set MAT as [Normal].
2. Meanwhile, for security reason, there are two functions to protect
BIOS and protect user's system from crashing:
(a) There is a safe hotkey "Ins" in BIOS. If the overclocking or/and
MAT fails to run, you can press "Ins" key while rebooting system to
restore to the BIOS Defaults.
(b) If your system reboot for four times continually, the BIOS will be
restored to the Defaults ([Normal]), too
CPU Ratio Selection
This setting controls the multiplier that is used to determine the internal clock speed of
the processor relative to the external or motherboard clock speed.
DRAM Frequency
Use this field to configure the clock frequency of the installed DRAM. Settings are:
PSB 400: [100-355MHz]
PSB 533: [133-500MHz]
PSB 800: [200-500MHz]
Spread Spectrum
When the motherboard's clock generator pulses, the extreme values (spikes) of the
pulses creates EMI (Electromagnetic Interference). The Spread Spectrum function
reduces the EMI generated by modulating the pulses so that the spikes of the pulses
are reduced to flatter curves. If you do not have any EMI problem, leave the setting at
[Disabled] for optimal system stability and performance. But if you are plagued by EMI,
activate the Spread Spectrum for EMI reduction. Remember to disable Spread
Spectrum if you are overclocking because even a slight jitter can introduce a tempo-
rary boost in clock speed which may just cause your overclocked processor to lock
up. Options: [Disabled], [Enabled].
BIOS Setup
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